Synthesis of Unfunctionalized Carbonated Fragments Containing Two Vicinal Chiral Centers: Stereocontrolled Benzylation of Vinylsulfones Mediated by a Remote Sulfinyl Group
作者:José Luis García Ruano、Christine Schöpping、Cuauhtémoc Alvarado、José Alemán
DOI:10.1002/chem.201001006
日期:——
One‐pot benzylation of (E)‐vinylsulfones with optically pure 2‐p‐tolylsulfinylbenzyl carbanions and desulfinylation with tBuLi, followed by desulfonylation of the resulting 1‐sulfonylpropanes, provided acyclic hydrocarbons containingtwo connected chiralcenters in very smooth conditions and almost complete control of the stereoselectivity (see scheme).